Adjustable cement mortar fluidity tester
By introducing positioning and adjustment components into the cement mortar flowability tester, the problems of unstable positioning of the truncated cone mold and the inability to adjust the drop distance of the disc were solved, resulting in more stable feeding and wider applicability of materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN BUILDING MATERIALS RES & DESIGN INST CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-26
AI Technical Summary
The existing cement mortar flowability tester has a simple structure and lacks a positioning mechanism, which makes the truncated cone mold not stable and accurate enough during the feeding process, and the drop distance of the disc cannot be adjusted, making it unsuitable for testing different materials.
An adjustable cement mortar flowability tester was designed, comprising a positioning component and an adjustment component. The positioning component achieves stable positioning of the truncated cone mold through the cooperation of a positioning sleeve and a spring, while the adjustment component achieves adjustment of the disc drop distance through the cooperation of a lifting sleeve and a fixing rod.
It achieves stable positioning of the truncated cone mold during the feeding process, avoids displacement from affecting test results, and can adapt to the testing requirements of different materials, thus expanding the instrument's applicability.
Smart Images
Figure CN224416648U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement technology, and in particular to an adjustable cement mortar flowability tester. Background Technology
[0002] Cement is a fine-powdered hydraulic cementitious material that hardens in air and water and binds materials such as sand and stone when a suitable amount of water is added. Its development began in 18th-century Britain, and my country became the world's largest cement producer in 1985. According to its use and performance, it can be divided into general-purpose cement, special-purpose cement, and specialty cement. It can also be classified in various ways according to its main hydraulic minerals. The production process includes crushing, drying, grinding, calcination, homogenization, and storage. Its main chemical components include calcium oxide and silicon dioxide, and its performance parameters include stability, setting time, and strength. It is widely used in general civil engineering, large and medium-sized hydropower projects, and marine engineering, such as residential construction, the Three Gorges Project, and the Hangzhou Bay Bridge.
[0003] In the cement production process, it is necessary to test the flowability of cement mortar, thus requiring the use of a cement mortar flowability tester. However, the current testers have a relatively simple structure and lack a positioning mechanism. During the feeding process, the operator can only manually hold the truncated cone mold. However, manual operation is not stable or precise enough, and the truncated cone mold will still shift, thus affecting the test results. At the same time, it is impossible to adjust the drop distance of the disc, making it impossible to test different materials (such as high-flowability grouting materials), and its applicable range is limited. Therefore, this application proposes an adjustable cement mortar flowability tester to meet the requirements. Utility Model Content
[0004] In order to overcome the shortcomings of existing devices, such as insufficient stability and precision in positioning the truncated cone mold and the inability to adjust the drop distance of the disc, this utility model provides an adjustable cement mortar flowability tester.
[0005] The technical implementation scheme of this utility model is as follows: an adjustable cement mortar flowability tester includes a base, a mounting frame fixedly connected to the top of the base, a hollow vertical rod fixedly connected to the top of the mounting frame, a top rod slidably connected inside the vertical rod, a disc fixedly connected to the top of the top rod, a positioning component provided on the top of the disc, an adjustment component provided on the outer periphery of the vertical rod, a motor installed on the top of the base, and a cam fixedly connected to the drive shaft of the motor.
[0006] Optionally, the positioning assembly includes a mounting rod, a first sliding groove, a connecting groove, a connecting rod, a positioning sleeve, a first slider, and a first spring. Two sets of mounting rods are provided above the disc. The first sliding groove is formed inside the mounting rod. The connecting groove passes through the inner wall of the first sliding groove near the center of the disc. The connecting rod is movably connected to the connecting groove and extends one end into the first sliding groove. The positioning sleeve is fixedly connected to the other end of the connecting rod and is adapted to the size of the truncated cone mold. The first slider is fixedly connected to the end of the connecting rod within the first sliding groove and slidably connected to the first sliding groove. The first spring is installed inside the first sliding groove and its two ends are respectively fixedly connected to the inner wall of the first sliding groove on the side away from the positioning sleeve and the side of the first sliding groove away from the positioning sleeve.
[0007] Optionally, the positioning component further includes a mounting base, a rotating groove, and a rotating block. The mounting base is provided in two sets and is fixedly connected to both sides of the disc. The rotating groove is opened on the top of the mounting base. The rotating block is fixedly connected to the outer end of the mounting rod and rotatably connected to the rotating groove.
[0008] Optionally, the adjustment assembly includes a lifting sleeve, a fixing hole, a mounting block, a through groove, and a fixing rod. The lifting sleeve is fitted and slidably connected to the outer periphery of the vertical rod. Several sets of fixing holes are provided and opened on both sides of the vertical rod. The mounting block is fixedly connected to both sides of the lifting sleeve. The through groove passes through the mounting block and the lifting sleeve. The fixing rod is movably connected to the through groove and is adapted to the size of the fixing hole.
[0009] Optionally, the adjustment assembly further includes a second slide groove, a second slider, a second spring, and a pull block. The second slide groove is formed on the inner wall of the through groove. The second slider is fixedly connected to the outer periphery of the fixed rod and slidably connected to the second slide groove. The second spring is sleeved on the outer periphery of the fixed rod and its two ends are respectively fixedly connected to the inner wall of the second slider on the side away from the vertical rod and the side of the slide groove away from the vertical rod. The pull block is fixedly connected to the outer end of the fixed rod.
[0010] This utility model has the following advantages:
[0011] 1. This utility model, by setting a positioning component, places the truncated cone mold at the center of the top of the disc. Then, the rotating block rotates along the rotating groove, causing the positioning sleeve to rotate synchronously via the mounting rod. Before the positioning sleeve contacts the disc, the positioning sleeve is pushed towards the mounting rod, causing the first slider to slide along the first groove to both sides via the connecting rod and compress the first spring. When the distance between the two sets of positioning sleeves is greater than the truncated cone mold, the mounting rod continues to rotate until the positioning sleeve contacts the disc. Then, the positioning sleeve is released, the first spring rebounds, and the positioning sleeve moves towards the center of the disc via the first slider and the connecting rod. When the positioning sleeve is tightly fitted to both sides of the truncated cone mold, it can be clamped and positioned. This design allows the device to position the truncated cone mold during the feeding process, thereby avoiding displacement that could affect the test results.
[0012] 2. This utility model features an adjustment component. Pulling the pull block outward causes it to slide the second slider outward along the second groove via the fixed rod, compressing the second spring. When the fixed rod moves out of the fixed hole, the lifting sleeve slides up and down until the distance between the lifting sleeve and the disc matches the required drop distance of the material. Then, the pull block is released, the second spring rebounds, and the second slider moves the fixed rod inward. When the fixed rod is inserted into the fixed hole at the current height, the lifting sleeve is fixed at the current height. This design allows the device to adjust the drop distance of the disc, making it suitable for testing different materials. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the positioning component structure of this utility model. Figure 1 ;
[0015] Figure 3 This is a schematic diagram of the positioning component structure of this utility model. Figure 2 ;
[0016] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model. Figure 1 ;
[0017] Figure 5 This is a schematic diagram of the adjustment component structure of this utility model. Figure 2 .
[0018] The meanings of the reference numerals in the figure are as follows: 1. Base; 2. Mounting bracket; 3. Vertical rod; 4. Top rod; 5. Disc; 6. Positioning component; 61. Mounting rod; 62. First slide groove; 63. Connecting groove; 64. Connecting rod; 65. Positioning sleeve; 66. First slider; 67. First spring; 68. Mounting seat; 69. Rotary groove; 610. Rotating block; 7. Adjustment component; 71. Lifting sleeve; 72. Fixing hole; 73. Mounting block; 74. Through groove; 75. Fixing rod; 76. Second slide groove; 77. Second slider; 78. Second spring; 79. Pull block; 8. Motor; 9. Cam. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, a further detailed description of this utility model will be provided below in conjunction with the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside that appear or will appear in this document are based solely on the accompanying drawings and are not intended to specifically limit this utility model.
[0020] An adjustable cement mortar flowability tester includes a base 1, a mounting frame 2 fixedly connected to the top of the base 1, a hollow vertical rod 3 fixedly connected to the top of the mounting frame 2, a top rod 4 slidably connected inside the vertical rod 3, a disc 5 fixedly connected to the top of the top rod 4, a positioning component 6 provided on the top of the disc 5, an adjustment component 7 provided on the outer periphery of the vertical rod 3, a motor 8 mounted on the top of the base 1, and a cam 9 fixedly connected to the drive shaft of the motor 8.
[0021] It should be noted that the positioning component 6 enables the device to position the truncated cone mold during the feeding process, thereby preventing displacement from affecting the test results. The adjustment component 7 enables the device to adjust the drop distance of the disc 5, thus making it suitable for testing different materials.
[0022] like Figure 2 As shown, the positioning component 6 includes a mounting rod 61, a first sliding groove 62, a connecting groove 63, a connecting rod 64, a positioning sleeve 65, a first slider 66, and a first spring 67. Two sets of mounting rods 61 are provided and are located above the disk 5. The first sliding groove 62 is opened inside the mounting rod 61. The connecting groove 63 passes through the inner wall of the first sliding groove 62 near the center of the disk 5. The connecting rod 64 is movably connected to the connecting groove 63 and one end extends into the first sliding groove 62. The positioning sleeve 65 is fixedly connected to the other end of the connecting rod 64 and is adapted to the size of the truncated cone mold. The first slider 66 is fixedly connected to the end of the connecting rod 64 located in the first sliding groove 62 and is slidably connected to the first sliding groove 62. The first spring 67 is installed inside the first sliding groove 62 and its two ends are respectively fixedly connected to the inner wall of the first slider 66 away from the positioning sleeve 65 and the inner wall of the first sliding groove 62 away from the positioning sleeve 65.
[0023] It should be noted that pushing the positioning sleeve 65 away from the center of the disk 5 will cause the first slider 66 to slide synchronously along the first slide groove 62 via the connecting rod 64 and compress the first spring 67. Releasing the positioning sleeve 65 will cause the first spring 67 to rebound, which will then cause the positioning sleeve 65 to move closer to the center of the disk 5 via the first slider 66 and the connecting rod 64.
[0024] like Figure 3 and Figure 4 As shown, the positioning component 6 also includes a mounting base 68, a rotating groove 69, and a rotating block 610. The mounting base 68 is provided in two sets and is fixedly connected to both sides of the disc 5. The rotating groove 69 is opened on the top of the mounting base 68. The rotating block 610 is fixedly connected to the outer end of the mounting rod 61 and rotatably connected to the rotating groove 69.
[0025] It should be noted that rotating the rotating block 610 along the rotating groove 69 will drive the mounting rod 61 to rotate synchronously, thereby moving the positioning sleeve 65 and avoiding its interference with the test.
[0026] like Figure 5 andFigure 5 As shown, the adjustment component 7 includes a lifting sleeve 71, a fixing hole 72, a mounting block 73, a through groove 74, and a fixing rod 75. The lifting sleeve 71 is fitted and slidably connected to the outer periphery of the vertical rod 3. Several sets of fixing holes 72 are provided and opened on both sides of the vertical rod 3. The mounting block 73 is fixedly connected to both sides of the lifting sleeve 71. The through groove 74 passes through the mounting block 73 and the lifting sleeve 71. The fixing rod 75 is movably connected to the through groove 74 and is adapted to the size of the fixing hole 72.
[0027] It should be noted that the height of the lifting sleeve 71 can be adjusted by removing the fixing rod 75 from the fixing hole 72, and the lifting sleeve 71 can be fixed at the current height by inserting the fixing rod 75 into the fixing hole 72.
[0028] like As shown, the adjustment assembly 7 also includes a second slide groove 76, a second slider 77, a second spring 78, and a pull block 79. The second slide groove 76 is formed in the inner wall of the through groove 74. The second slider 77 is fixedly connected to the outer periphery of the fixed rod 75 and slidably connected to the second slide groove 76. The second spring 78 is sleeved on the outer periphery of the fixed rod 75 and its two ends are respectively fixedly connected to the inner wall of the second slider 77 away from the vertical rod 3 and the second slide groove 76 away from the vertical rod 3. The pull block 79 is fixedly connected to the outer end of the fixed rod 75.
[0029] It should be noted that pulling the pull block 79 outward will cause the second slider 77 to slide outward along the second slide groove 76 via the fixed rod 75 and compress the second spring 78. Releasing the pull block 79 will cause the second spring 78 to rebound, which will then cause the fixed rod 75 to move inward via the second slider 77.
[0030] In a specific application scenario, the truncated cone mold is first placed at the top center of the disk 5. Then, the rotating block 610 is rotated along the rotating groove 69, causing the positioning sleeve 65 to rotate synchronously via the mounting rod 61. Before the positioning sleeve 65 contacts the disk 5, the positioning sleeve 65 is pushed towards the mounting rod 61, causing the first slider 66 to slide along the first groove 62 to both sides via the connecting rod 64 and compress the first spring 67. When the distance between the two sets of positioning sleeves 65 is greater than that of the truncated cone mold, the mounting rod 61 is rotated until the positioning sleeve 65 contacts the disk 5. Then, the positioning sleeve 65 is released, and the first spring 67 rebounds, causing the positioning sleeve 65 to move towards the center of the disk 5 via the first slider 66 and the connecting rod 64. When the positioning sleeve 65 is tightly fitted to both sides of the truncated cone mold, it can be clamped and positioned, ensuring that it is always at the center of the disk 5. Then, the mortar to be tested is placed... After the material is loaded into the truncated cone mold, repeat the above operation in reverse to remove the positioning sleeve 65 from above the disc 5 and remove the truncated cone mold. Then start the motor 8 so that it drives the push rod 4 to lift and lower via the cam 9 to start the test. When different materials need to be tested, pull the pull block 79 outward so that it drives the second slider 77 to slide outward along the second slide groove 76 via the fixed rod 75 and squeeze the second spring 78. When the fixed rod 75 moves out of the fixed hole 72, slide the lifting sleeve 71 up and down until the distance between the lifting sleeve 71 and the disc 5 matches the required drop distance of the material. Release the pull block 79, the second spring 78 rebounds and drives the fixed rod 75 to move inward via the second slider 77. When the fixed rod 75 is inserted into the fixed hole 72 at the current height, the lifting sleeve 71 can be fixed at the current height. At this time, the new material can be tested.
[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. An adjustable cement mortar flowability tester, comprising a base (1), characterized in that, The base (1) is fixedly connected to the top of the mounting bracket (2), the mounting bracket (2) is fixedly connected to the top of the hollow vertical rod (3), the vertical rod (3) is slidably connected to the top rod (4), the top rod (4) is fixedly connected to the top of the disc (5), the disc (5) is provided with a positioning component (6) on the top, the vertical rod (3) is provided with an adjustment component (7) on the outer periphery, the base (1) is mounted with a motor (8), and the drive shaft of the motor (8) is fixedly connected to a cam (9).
2. An adjustable cement mortar flowability tester according to claim 1, characterized in that, The positioning component (6) includes a mounting rod (61), a first sliding groove (62), a connecting groove (63), a connecting rod (64), a positioning sleeve (65), a first slider (66), and a first spring (67). Two sets of mounting rods (61) are provided above the disc (5). The first sliding groove (62) is formed inside the mounting rod (61). The connecting groove (63) passes through the inner wall of the first sliding groove (62) near the center of the disc (5). The connecting rod (64) is movably connected to the connecting groove (63) and one end of the connecting rod is connected to the connecting groove (63). Extending into the first slide groove (62), the positioning sleeve (65) is fixedly connected to the other end of the connecting rod (64) and is adapted to the size of the truncated cone mold. The first slider (66) is fixedly connected to one end of the connecting rod (64) in the first slide groove (62) and is slidably connected to the first slide groove (62). The first spring (67) is installed inside the first slide groove (62) and its two ends are respectively fixedly connected to the side of the first slider (66) away from the positioning sleeve (65) and the inner wall of the side of the first slide groove (62) away from the positioning sleeve (65).
3. An adjustable cement mortar flowability tester according to claim 2, characterized in that, The positioning component (6) also includes a mounting base (68), a rotating groove (69), and a rotating block (610). The mounting base (68) is provided in two sets and is fixedly connected to both sides of the disc (5). The rotating groove (69) is opened on the top of the mounting base (68). The rotating block (610) is fixedly connected to the outer end of the mounting rod (61) and rotatably connected to the rotating groove (69).
4. An adjustable cement mortar flowability tester according to claim 1, characterized in that, The adjustment component (7) includes a lifting sleeve (71), a fixing hole (72), a mounting block (73), a through groove (74), and a fixing rod (75). The lifting sleeve (71) is fitted and slidably connected to the outer periphery of the vertical rod (3). The fixing hole (72) is provided in several sets and is opened on both sides of the vertical rod (3). The mounting block (73) is fixedly connected to both sides of the lifting sleeve (71). The through groove (74) passes through the mounting block (73) and the lifting sleeve (71). The fixing rod (75) is movably connected to the through groove (74) and is adapted to the size of the fixing hole (72).
5. An adjustable cement mortar flowability tester according to claim 4, characterized in that, The adjustment assembly (7) further includes a second slide groove (76), a second slider (77), a second spring (78), and a pull block (79). The second slide groove (76) is opened on the inner wall of the through groove (74). The second slider (77) is fixedly connected to the outer periphery of the fixed rod (75) and slidably connected to the second slide groove (76). The second spring (78) is sleeved on the outer periphery of the fixed rod (75) and its two ends are respectively fixedly connected to the inner wall of the second slider (77) away from the vertical rod (3) and the second slide groove (76) away from the vertical rod (3). The pull block (79) is fixedly connected to the outer end of the fixed rod (75).